<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">

function boom()
{
  document.getElementById("select").appendChild(document.createElement("span"));
}

</script>
</head>

<body onload="setTimeout('boom()', 500);" style="-moz-column-count: 2; height: 0;"><fieldset><span id="z"><div><div></div></div><select id="select"></select></span></fieldset></body>
</html>
